J. Appl. Mater. Eng. 2020, 60(2), 1; doi: 10.35995/jame60020004
Supporting Body Material for Ceramic Diamond Grinding Tools
Received: 1 May 2020 / Revised: 6 Oct 2020 / Accepted: 2020-10-15 / Published: 2020-10-28
The characteristics of abrasive tools (the type of grinding wheel, granulation of the super hard grain, type of structure, hardness, and the type of binder) contain information on the type of supporting body materials used (e.g., dural, ceramic, steel). In this work, diamond wheels were obtained on ceramic supporting bodies, containing a sintered mixture of white alumina 99A granulation F320, green silicon carbide 99A granulation F320, and binder Ba23 bis, together with modifiers. The mechanical properties (hardness, bending strength) of ceramic supporting bodies were tested. The structure of the phase boundary of the ceramic supporting body–abrasive grinding tool was analyzed on a BEC (backscattered electron composition) image by using SEM (Scanning Electron Microscopy). It was found that the hardness of the supporting body was slightly lower (70–75 HRB) than the diamond wheels (76–81 HRB). The bending strength of the supporting bodies was high (85 ±2 MPa). The BEC image from the scanning microscope did not show a sharp transition between the ceramic supporting body and the grinding wheel. Preliminary operational tests showed significant improvement in grinding wheel efficiency in comparison to diamond tools with the same ceramic binder on a duralumin supporting body during machining of G30 sintered carbide bush.
Keywords: ceramic supporting body; vitrified bonds; diamond wheels; corundum; silicon carbide
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Staniewicz-Brudnik, B.; Figiel, P.; Skrabalak, G.; Karolus, M. Supporting Body Material for Ceramic Diamond Grinding Tools. J_Appl_Mater_Eng 2020, 60, 1.
Staniewicz-Brudnik B, Figiel P, Skrabalak G, Karolus M. Supporting Body Material for Ceramic Diamond Grinding Tools. Journal of Applied Materials Engineering. 2020; 60(2):1.
Staniewicz-Brudnik, Barbara; Figiel, Paweł; Skrabalak, Grzegorz; Karolus, Małgorzata. 2020. "Supporting Body Material for Ceramic Diamond Grinding Tools." J_Appl_Mater_Eng 60, no. 2: 1.